To enable the development of wearable devices that
possess advanced ultraviolet (UV) detection functions, scientists
from NTU Singapore have created a new type of light sensor that is
both flexible and highly sensitive.While invisible to the human
eye, UV rays surround us in our environment, and excessive exposure
can cause health issues including skin cancer and premature skin
aging. The intensity of UV rays is typically reported through an
index during weather reports. A wearable device, such as a T-shirt
or watch that monitors the actual personal UV exposure throughout
the day, would be a useful and more accurate guide for people
seeking to avoid sun damage.